docs: restructure docs (#14421)

Closes #13434 
Supersedes #14182

---------

Co-authored-by: Ethan <39577870+ethanndickson@users.noreply.github.com>
Co-authored-by: Ethan Dickson <ethan@coder.com>
Co-authored-by: Ben Potter <ben@coder.com>
Co-authored-by: Stephen Kirby <58410745+stirby@users.noreply.github.com>
Co-authored-by: Stephen Kirby <me@skirby.dev>
Co-authored-by: EdwardAngert <17991901+EdwardAngert@users.noreply.github.com>
Co-authored-by: Edward Angert <EdwardAngert@users.noreply.github.com>

docs/tutorials/example-guide.md

@@ -0,0 +1,54 @@
+# Guide Title (Only Visible in Github)
+
+<div>
+  <a href="https://github.com/<your_github_handle>" style="text-decoration: none; color: inherit;">
+    <span style="vertical-align:middle;">Your Name</span>
+    <img src="https://github.com/ericpaulsen.png" width="24px" height="24px" style="vertical-align:middle; margin: 0px;"/>
+  </a>
+</div>
+December 13, 2023
+
+---
+
+This is a guide on how to make Coder guides, it is not listed on our
+[official guides page](https://coder.com/docs/guides) in the docs. Intended for
+those who don't frequently contribute documentation changes to the `coder/coder`
+repository.
+
+## Content
+
+Defer to our
+[Contributing/Documentation](https://coder.com/docs/contributing/documentation)
+page for rules on technical writing.
+
+### Adding Photos
+
+Use relative imports in the markdown and store photos in
+`docs/images/guides/<your_guide>/<image>.png`.
+
+### Setting the author data
+
+At the top of this example you will find a small html snippet that nicely
+renders the author's name and photo, while linking to their Github profile.
+Before submitting your guide in a PR, replace `your_github_handle`,
+`your_github_profile_photo_url` and "Your Name". The entire `<img>` element can
+be omitted.
+
+## Setting up the routes
+
+Once you've written your guide, you'll need to add its route to
+`docs/manifest.json` under `Guides` > `"children"` at the bottom:
+
+```json
+{
+  // Overrides the "# Guide Title" at the top of this file
+  "title": "Contributing to Guides",
+  "description": "How to add a guide",
+  "path": "./guides/my-guide-file.md"
+},
+```
+
+## Format before push
+
+Before pushing your guide to github, run `make fmt` to format the files with
+Prettier. Then, push your changes to a new branch and create a PR.